نتایج جستجو برای: 7376 hydrothermal time model however

تعداد نتایج: 4668311  

Journal: :The journal of physical chemistry. B 2006
Qilong Liao Rina Tannenbaum Zhong Lin Wang

The present paper presents a facile and low-cost hydrothermal method to synthesize stoichiometric FeNi3 alloy nanoparticles by reducing Ni(NO3)2.6H(2)O and Fe(NO3)2.9H(2)O with hydrazine hydrate in strong alkaline media. X-ray diffraction patterns of as-prepared samples synthesized at 180 degrees C for different hydrothermal reaction times reveal that the products are pure stoichiometric FeNi3 ...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
محمد رضا محبوبی دانشیار و عضو هیئت علمی دانشگاه علوم کشاورزی و منابع طبیعی گرگان نرگس حسن آبادی عضو هیئت علمی دانشگاه پیام نور واحد گرگان

this study aimed to identify barriers of hydrothermal fish business in golestan province. study was a descriptive survey. t he statistical population of the study consisted of all 147 aquaculture hydrothermal fish growers and all of them were selected using census method. information was gathered through a questionnaire which its face validity was confirmed by experts of agricultural extension ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده برق و کامپیوتر 1392

abstract nowadaysphotovoltaic solar cells (pvs) areacknowledged the fastest growing energy technology in the word, however, they only account for only fraction of current global renewable energy capacity. it isrecognized that this incomplete market penetration has been largely a result of the technology’sexcessive cost. so researchers are trying to find innovative, economic way with theaim of ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Michael A Antonelli Nicholas J Pester Shaun T Brown Donald J DePaolo

Variations in the Mg, Ca, Sr, and SO4 concentrations of paleoseawater can affect the chemical exchange between seawater and oceanic basalt in hydrothermal systems at midocean ridges (MOR). We present a model for evaluating the nature and magnitude of these previously unappreciated effects, using available estimates of paleoseawater composition over Phanerozoic time as inputs and 87Sr/86Sr of op...

Journal: :Inf. Sci. 2009
Min-Ling Zhang José María Peña Sánchez Víctor Robles

Min-Ling Zhang, José M. Peña and Victor Robles College of Computer and Information Engineering, Hohai University, Nanjing 210098, China; Tel.: +86-25-8378-7071; Fax: +86-25-8378-7793; Email: [email protected] National Key Laboratory for Novel Software Technology, Nanjing University, Nanjing 210093, China Department of Computer Architecture and Technology, Technical University of Madrid, Madrid...

2014
Akihide Ohkuchi Kayo Takahashi Chikako Hirashima Mitsuaki Suzuki

Cite this article: Ohkuchi A, Takahashi K, Hirashima C, Usui R, Matsubara S, et al. (2014) Prediction of Early-Onset Preeclampsia Using Uterine Artery Doppler. Med J Obstet Gynecol 2(2): 1026. *Corresponding authors Akihide Ohkuchi, Department of Obstetrics and Gynecology, Jichi Medical University School of Medicine, 3311-1 Yakushiji, Shimotsuke-shi, Tochigi, 329-049, Japan, Tel: 81-285-58-7376...

2017
Pattasuda DUANGKAEW Shuhei INOUE Tsunehiro AKI Yutaka NAKASHIMADA Yoshiko OKAMURA Yukihiko MATSUMURA

The utilization of renewable energy resources is desirable owing to several issues, including the depletion of petroleum resources and global warming1). Among many kinds of renewable resources, marine biomass (macroalgae) could be a promising feedstock for bioproduct and biofuel production2),3). However, appropriate pretreatment is needed prior to its effective utilization. Owing to the high wa...

2017
Yang Li Xian-Hua Li David Selby Jian-Wei Li

The magmatic-hydrothermal evolution of porphyry-style mineralization in the shallow crust that is linked to magmatic processes at depth has been extensively studied using bulksample isotopic analysis combined with relative timing constraints. However, a lack of evaluation of the fluid evolution process against an absolute time frame limits further understanding of the ore-forming process. Here,...

Journal: :Bioresource technology 2011
Jiacheng Shen Charles E Wyman

Pretreatment of corn stover in 0.5% sulfuric acid at 160 °C for 40 min realized a maximum monomeric plus oligomeric xylose yield of 93.1% compared to a maximum of only 71.5% for hydrothermal (no added mineral acid) pretreatment at 180 °C for 30 min. To explain differences in dilute acid and hydrothermal yields, a fast reacting xylan fraction (0.0889) was assumed to be able to directly form mono...

2014

Thispaper presents a deterministic model, which takes into account the final water storage and the effects of water head, for optimal short term generation scheduling of a hydrothermal system. Considering its large scale mixed integer nonlinear structure, a hybrid algorithm based on Genetic Algorithm and tabu search is developed to solve it. The model is divided into thermal power dispatch and ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید